Unobtanium is a fictional element, which has a close correlation with narrativium. Very little unobtanium has appeared in the comic; it is known that Trope-tan's BFQ is, at least partially, made of unobtanium.
Interaction With Narrativium Edit
Unobtanium's reactions with narrativium are clearly defined. If a mass of unobtanium is positively charged, it will attract the negatively charged narrativium; if negatively charged, it repels the narrativium. These properties may be used to produce stable plot holes.